That is: since Allah is your supporter then do stay firmly on the way.
That is: since Allah is your supporter then do stay firmly on the way. The term /rabb/ 'Lord, Cherisher' points to the same idea. And in the second instruction the Prophet (p.b.u.h.) is warned not to listen to or obey the unjust. It says: "...and obey not from among them a guilty or an ungrateful one. In fact, the second instruction is an emphasis on the first instruction, because numerous enemies tried, in different ways, to make the Prophet (p.b.u.h.) adapt to their way of thinking.
It is said that 'Atabat-ibn-i-Rabi'ah' and 'walid-ibn-i-Muqayyarah' told the Prophet (p.b.u.h.) to leave his prophecy and they would give him as much wealth and the most beautiful ladies to marry as would satisfy him and other suggestions like this, hut the Prophet (p.b.u.h.) as a true, great leader, was instructed to he patient and constant against the evil temptations or the threats. which were made against him. He should not yield to either the allurements or the threats.
It is true hit the Prophet (p.b.u.h.) never yielded, and this is a sign for the greatness of his faith; an eternal model for other leaders of the Way.
Although some commentators have said that the term 'sinner' refers to 'Atabat-ibn- i-Rabi'ah' and the term 'ungrateful' refers to 'Walid-ibn-i-Muqayyarah' or 'Abu Jahl; each of whom were among the pagan Arabs, it is clear that the terms have a vast meaning, which encompasses any sinner and unbeliever; but these three were the most vivid evidences of the words.
It is also noteworthy that 'sinner' has a general meaning which includes the ungrateful, too, then 'ungrateful' is a subdivision of 'sinner'. However, since being patient and constant with many great difficulties is not easy to do and going on such a road needs two certain provisions, so, it says in the next verse: "And remember the name of your Lord morning and evening." "And during the night prostrate thyself to Him; and glorify Him (a) long (part of the) night".
Under the light of 'remembering the Name of your Lord', and with 'prostration and glorification' you can build the necessary spiritual strength and sufficient support for overcoming the difficulties along the way. The term /bukrah/ 'beginning of the day' is opposite to the term /asil/ 'evening, sunset', which is followed by praying at night and are mentioned in these two verses to show the necessity of continuous remembrance of Allah both day and night.